![UK spy agency GCHQ has set up a festive brainteaser. Alamy/PA](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/7T3P33GKXNAJNG62Y2WEOHN6TY.jpg?smart=true&auth=01ffd1163b2c715db9c8764e6a10a393a5b15d4837b6eb047dba8e3e9ffee340&width=400&height=225)
UK spy agency GCHQ has set up a festive brainteaser. Alamy/PA
UK spy agency GCHQ has set up a festive brainteaser. Alamy/PA
UK's GCHQ reveals festive puzzle for young wannabe spies
Agency has created an intricate challenge to test the ability of the next generation of would-be James Bonds